Meanwhile, Mariah Carey, who also just finished up with a residency, was forced to abandon her Good Morning Britain interview, having found out about the attack live on air.

When host Pierce Morgan told the star about the incident, she appeared visibly upset, stating "Wow, that's awful. Again, I pray for the victims and hope all these can stop as soon as possible."

Mariah Carey led the tributes to the victims, after she learned of the news live on air. (via ITV)

She said "I've spent a lot of time in Vegas, and this type of thing happening anywhere is a huge tragedy...I continue to pray for the victims. I hope we have an end to this as soon as possible. It's terrible because people are going out to listen to music. Really, they're out for the night and something like this happens...It's shocking."

She later took to Twitter to express her shock.

Horrified to hear about the shooting in #LasVegas. My thoughts are with the victims and their families. Praying for everyone's safety 🙏💔